I'm working on a modification of the Wolfenstein 3D engine in SDL2 (using Wolf4SDL as a base) and I've run into a problem - when using -static in the linker options, I get a large variety of undefined references to various things. Here's my build log to show what I mean:
-------------- Build: Debug in Lazarus (compiler: GNU GCC Compiler)---------------
i686-w64-mingw32-g++.exe -LC:\SDL2\lib -o Lazarus.exe .objs\alu_cache.o .objs\alu_dbg_mem.o .objs\alu_gfx.o .objs\alu_hud.o .objs\alu_in.o .objs\alu_me_core.o .objs\alu_me_gui.o .objs\alu_me_symbols.o .objs\alu_me_textinput.o .objs\alu_me_tools.o .objs\alu_me_windows.o .objs\alu_menu.o .objs\alu_pak.o .objs\alu_particles.o .objs\asmcomp.o .objs\id_us_1.o .objs\vieasm.o .objs\wl_act1.o .objs\wl_act2.o .objs\wl_agent.o .objs\wl_debug.o .objs\wl_dir3dspr.o .objs\wl_draw.o .objs\wl_floorceiling.o .objs\wl_game.o .objs\wl_inter.o .objs\wl_main.o .objs\wl_play.o .objs\wl_state.o .objs\wl_text.o -static -pg -lgmon -lmingw32 -lSDL2main -lSDL2 -lSDL2_image -lSDL2_mixer -mwindows
C:\SDL2\lib\libSDL2.a(SDL_systimer.o): In function `timeSetPeriod':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:58: undefined reference to `_imp__timeBeginPeriod@4'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:52: undefined reference to `_imp__timeEndPeriod@4'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:58: undefined reference to `_imp__timeBeginPeriod@4'
C:\SDL2\lib\libSDL2.a(SDL_systimer.o): In function `SDL_TicksInit':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:106: undefined reference to `_imp__timeGetTime@0'
C:\SDL2\lib\libSDL2.a(SDL_systimer.o): In function `timeSetPeriod':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:52: undefined reference to `_imp__timeEndPeriod@4'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:52: undefined reference to `_imp__timeEndPeriod@4'
C:\SDL2\lib\libSDL2.a(SDL_systimer.o): In function `SDL_GetTicks_REAL':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:159: undefined reference to `_imp__timeGetTime@0'
C:\SDL2\lib\libSDL2.a(SDL_systimer.o): In function `timeSetPeriod':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:58: undefined reference to `_imp__timeBeginPeriod@4'
C:\SDL2\lib\libSDL2.a(SDL_systimer.o): In function `SDL_TicksInit':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:106: undefined reference to `_imp__timeGetTime@0'
C:\SDL2\lib\libSDL2.a(SDL_systimer.o): In function `timeSetPeriod':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:52: undefined reference to `_imp__timeEndPeriod@4'
C:\SDL2\lib\libSDL2.a(SDL_systimer.o): In function `SDL_GetTicks_REAL':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:159: undefined reference to `_imp__timeGetTime@0'
C:\SDL2\lib\libSDL2.a(SDL_systimer.o): In function `timeSetPeriod':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:58: undefined reference to `_imp__timeBeginPeriod@4'
C:\SDL2\lib\libSDL2.a(SDL_systimer.o): In function `SDL_TicksInit':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:106: undefined reference to `_imp__timeGetTime@0'
C:\SDL2\lib\libSDL2.a(SDL_systimer.o): In function `timeSetPeriod':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:52: undefined reference to `_imp__timeEndPeriod@4'
C:\SDL2\lib\libSDL2.a(SDL_windows.o): In function `WIN_CoInitialize':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/core/windows/SDL_windows.c:68: undefined reference to `_imp__CoInitializeEx@8'
C:\SDL2\lib\libSDL2.a(SDL_windows.o): In function `WIN_CoUninitialize':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/core/windows/SDL_windows.c:87: undefined reference to `_imp__CoUninitialize@0'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_SetupAPI':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:596: undefined reference to `ImmGetIMEFileNameA@12'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:609: undefined reference to `ImmGetContext@4'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:612: undefined reference to `ImmReleaseContext@8'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_GetId':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:530: undefined reference to `ImmGetIMEFileNameA@12'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:545: undefined reference to `GetFileVersionInfoSizeA@8'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:549: undefined reference to `GetFileVersionInfoA@16'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:550: undefined reference to `VerQueryValueA@16'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `UILess_GetCandidateList':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:966: undefined reference to `_imp__SysFreeString@4'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_ClearComposition':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:662: undefined reference to `ImmGetContext@4'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:666: undefined reference to `ImmNotifyIME@16'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:670: undefined reference to `ImmNotifyIME@16'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:671: undefined reference to `ImmReleaseContext@8'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_Disable':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:344: undefined reference to `ImmAssociateContext@8'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_ClearComposition':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:668: undefined reference to `ImmSetCompositionStringW@24'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:662: undefined reference to `ImmGetContext@4'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:666: undefined reference to `ImmNotifyIME@16'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:670: undefined reference to `ImmNotifyIME@16'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:671: undefined reference to `ImmReleaseContext@8'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:668: undefined reference to `ImmSetCompositionStringW@24'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `UIElementSink_BeginUIElement@12':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:1033: undefined reference to `_imp__SysFreeString@4'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `UIElementSink_UpdateUIElement@8':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:1060: undefined reference to `_imp__SysFreeString@4'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_Init':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:289: undefined reference to `_imp__CoCreateInstance@20'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:303: undefined reference to `ImmGetContext@4'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:304: undefined reference to `ImmReleaseContext@8'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `UILess_SetupSinks':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:1174: undefined reference to `_imp__CoCreateInstance@20'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_GetId':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:530: undefined reference to `ImmGetIMEFileNameA@12'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:545: undefined reference to `GetFileVersionInfoSizeA@8'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:549: undefined reference to `GetFileVersionInfoA@16'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_GetReadingString':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:402: undefined reference to `ImmGetContext@4'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:477: undefined reference to `ImmReleaseContext@8'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_GetId':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:550: undefined reference to `VerQueryValueA@16'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_Quit':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:358: undefined reference to `ImmAssociateContext@8'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_Enable':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:329: undefined reference to `ImmAssociateContext@8'
C:\SDL2\lib\libSDL2.a(SDL_windowskeyboard.o): In function `IME_ClearComposition':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/video/windows/SDL_windowskeyboard.c:662: undefined reference to `ImmGetContext@4'
Process terminated with status 1 (0 minute(s), 0 second(s))
50 error(s), 0 warning(s) (0 minute(s), 0 second(s))
This does not happen when linking a normal Wolf4SDL mod (which uses SDL 1.2), and it links correctly if I don't use -static but then won't run without various other DLLs being present (namely libgcc_s_dw2-1.dll and the like). While I can just change PATH to include my MinGW directory, when it comes time to distribute it I can't expect everyone to have MinGW installed, and I want to keep the number of DLLs I'm distributing with my mod to a minimum considering I'm already using SDL_mixer and SDL_image which come with a ton of DLLs already. Anyone have a solution to this?
OK, fixed the problem - I needed to link a variety of Windows libraries, namely Ole32, Oleaut32, Imm32, Winmm and Version. Not sure why this wasn't the case for SDL 1; it wasn't mentioned in the Migration Guide either so I'm not sure where the difference comes from.
For me this meant "use pkg-config --static" since I had compiled a static only version and wanted to use that.
Guess that's just how pkg-config rolls. Another option (like the OP mentioned) is to either add the libraries you need "out of band" or to modify sdl2.pc so it includes "all the libraries you need" on the Libs: line (not Libs.static: line which probably already has them).
Again, that's how pkg-config rolls :|
来源：https://stackoverflow.com/questions/28260245/receiving-undefined-references-to-various-windows-libraries-when-compiling-with